test inheritance php

test1.php

<?php

class foo
{
	private $name;
	public function greet2()
	{
	 	$this->greet('jan');
		echo $this->name;
	}
	private function greet($name)
	{
		$this->name = $name;
	}
}


class bar extends foo 
{
	public function greet($name)
	{
		echo "Hello" . $name;
	}
}

$bar = new bar;
$bar->greet('jan');
$bar->greet2();

test2.php

<?php

class foo
{
	private $name;
	public function greet2()
	{
	 	$this->greet('jan');
		echo $this->name;
	}
	private function greet($name)
	{
		$this->name = $name;
	}
}


class bar extends foo 
{
	public function greet()
	{
		echo "Hello";
	}
}

$bar = new bar;
$bar->greet();
$bar->greet2();